发展“持续农业”,保护农业环境

在说明“集约化”和“掠夺式农业”两种不适当的农业生产方式对农业环境带来严重危害的基础上，提出了发展、持续农业”的新概念。并阐述了各国发展“持续农业”的现状，以及发展持续农业国际合作的趋势。     

城市环保战略目标定量考核指标体系研究

本文在深入研究6个城市的定量考核指标体系的基础上,提出了城市环保战略目标定量考核指标体系建立的依据和原则,探讨了指标体系的结构与指标选取问题.本文认为,城市环保战略目标定量考垓指标体系应由目标层、准则层和指标层三个层次构成,整个结构是自上而下分解,自下而上递进.     

2005年全省环境保护工作要点

2005年，全省环保工作要全面落实科学发展观，按照构建和谐社会的要求，积极参与宏观调控，维护群众环境权益，提高环境保护能力，建设资源节约型和环境友好型社会，为促进我省经济社会实现更快更好发展提供坚实的环境保障。其主要工作目标：     

让野花再次出现在百花园中

多年以来，野花似乎已经为人们所忽略，甚至更糟的是，它们被英国园艺人员和景观专家从人们的视线中清除出去。在修建花园，美化空地时，人们通常只想到人工培植的花卉、灌木、甚至青草。     

Experimental study on Cr(Ⅵ) reduction by Pseudomonas aeruginosa

Investigation on Cr( Ⅵ ) reduction was conducted using Pseudomonas aeruginosa. The study demonstrated that the Cr(Ⅵ) canbe effectively reduced to Cr( Ⅲ ) by Pseudomonas aeruginosa. The effects of the factors affecting Cr( Ⅵ ) reduction rate including carbon source type, pH, initial Cr(Ⅵ) concentration and amount of calls inoculum were thoroughly studied. Malate was found to yield maximum biotransformation, followed by succinate and glucose, with the reduction rate of 60.86%, 43. 76% and 28.86% respectively. The optimum pH for Cr( Ⅵ ) reduction was ?.0, with reduction efficiency of 61.71 % being achieved. With the increase of initial Cr(Ⅵ) concentration,the rate of Cr(Ⅵ) reduction decreased. The reduction was inhibited strongly when the initial Cr(Ⅵ) concentration increased to 157 mg/L. As the amount of cells inoculum increased, the rate of Cr( Ⅵ ) reduction also increased. The mechanism of Cr( Ⅵ ) reduction and final products were also analysed. The results suggested that the soluble enzymes appear to be responsible for Cr (Ⅵ) reduction by Pseudomonas aeruginosa, and the reduced Cr( Ⅲ ) was not precipitated in the form of Cr(OH)3.     

Effects of bifenthrin on Daphnia magna during chronic toxicity test and the recovery test

IntroductionWiththedevelopmentandapplicationofnewpesticide ,insecticidehasgreatlyreducedtheharmofpesttocrops .Bifenthrinisaneffectivepyrethroidinsecticideandacaricideagainstawiderangeofinsectpests ,anditisverypoisonoustomammal,aquatic .Thisinsecticideiswi…     

浅析农村环境安全屏障的构建

政府对我国农村环境安全是关注的，但重视程度不够，农村环境污染仍在加剧，本文试图从理论和实践来探讨农村环境安全保护屏障的构建。